Resilience, Racial Identity, and Memory in Marginalized Caregiving Grandparents: The Role of Physical Activity

Le résumé fourni par la source

Abstract Prospective memory failures in aging populations may reflect reduced engagement in protective behaviors like physical activity. Ethno-racially marginalized caregiving grandparents face intersecting stressors exacerbating memory challenges. While resilience and ethnic identity may buffer effects, their links to prospective memory remain underexplored. This study examines: 1) resilience-prospective memory links, 2) ethnic identity (resolution/exploration) moderation of resilience-physical activity pathways, and 3) physical activity’s mediation. A nationwide sample of 84 Black/Hispanic/multiracial grandparents (ages 45-54) completed surveys assessing resilience (MIIRM), prospective memory (PMQ; higher scores = more failures), ethnic identity (EIS_R resolution, EIS_E exploration), and physical activity. Moderated mediation analyses revealed resilience predicted more frequent memory failures (PMQ: b=0.52, p<.001), potentially explained by cognitive load theory (heightened responsibility increasing self-reported lapses). Physical activity mediated this link inversely (b = 2.86, p<.001): resilience increased activity, reducing failures among those with stronger ethnic identity resolution (B = 0.04, p<.01), aligning with social identity theory. Exploration (EIS_E) showed weaker moderation (B = 0.017, p=.023), with non-significant mediation, suggesting identity exploration offers fewer stabilizing benefits. Moderated mediation was significant for resolution (index=0.12, 95%CI[0.047,0.23]). Interventions fostering resilience and ethnic identity commitment may mitigate structural inequities’ cognitive toll through protective behaviors.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.